{-# LANGUAGE FlexibleInstances, FlexibleContexts, MultiParamTypeClasses #-}
{-# LANGUAGE PatternSynonyms #-}
module XMonad.Layout.StateFull (
pattern StateFull,
StateFull,
FocusTracking(..),
focusTracking
) where
import XMonad hiding ((<&&>))
import XMonad.Prelude (fromMaybe, (<|>))
import qualified XMonad.StackSet as W
import XMonad.Util.Stack (findZ)
data FocusTracking l a = FocusTracking (Maybe a) (l a)
deriving (Int -> FocusTracking l a -> ShowS
forall a.
(Int -> a -> ShowS) -> (a -> String) -> ([a] -> ShowS) -> Show a
forall (l :: * -> *) a.
(Show a, Show (l a)) =>
Int -> FocusTracking l a -> ShowS
forall (l :: * -> *) a.
(Show a, Show (l a)) =>
[FocusTracking l a] -> ShowS
forall (l :: * -> *) a.
(Show a, Show (l a)) =>
FocusTracking l a -> String
showList :: [FocusTracking l a] -> ShowS
$cshowList :: forall (l :: * -> *) a.
(Show a, Show (l a)) =>
[FocusTracking l a] -> ShowS
show :: FocusTracking l a -> String
$cshow :: forall (l :: * -> *) a.
(Show a, Show (l a)) =>
FocusTracking l a -> String
showsPrec :: Int -> FocusTracking l a -> ShowS
$cshowsPrec :: forall (l :: * -> *) a.
(Show a, Show (l a)) =>
Int -> FocusTracking l a -> ShowS
Show, ReadPrec [FocusTracking l a]
ReadPrec (FocusTracking l a)
ReadS [FocusTracking l a]
forall a.
(Int -> ReadS a)
-> ReadS [a] -> ReadPrec a -> ReadPrec [a] -> Read a
forall (l :: * -> *) a.
(Read a, Read (l a)) =>
ReadPrec [FocusTracking l a]
forall (l :: * -> *) a.
(Read a, Read (l a)) =>
ReadPrec (FocusTracking l a)
forall (l :: * -> *) a.
(Read a, Read (l a)) =>
Int -> ReadS (FocusTracking l a)
forall (l :: * -> *) a.
(Read a, Read (l a)) =>
ReadS [FocusTracking l a]
readListPrec :: ReadPrec [FocusTracking l a]
$creadListPrec :: forall (l :: * -> *) a.
(Read a, Read (l a)) =>
ReadPrec [FocusTracking l a]
readPrec :: ReadPrec (FocusTracking l a)
$creadPrec :: forall (l :: * -> *) a.
(Read a, Read (l a)) =>
ReadPrec (FocusTracking l a)
readList :: ReadS [FocusTracking l a]
$creadList :: forall (l :: * -> *) a.
(Read a, Read (l a)) =>
ReadS [FocusTracking l a]
readsPrec :: Int -> ReadS (FocusTracking l a)
$creadsPrec :: forall (l :: * -> *) a.
(Read a, Read (l a)) =>
Int -> ReadS (FocusTracking l a)
Read)
focusTracking :: l a -> FocusTracking l a
focusTracking :: forall (l :: * -> *) a. l a -> FocusTracking l a
focusTracking = forall (l :: * -> *) a. Maybe a -> l a -> FocusTracking l a
FocusTracking forall a. Maybe a
Nothing
type StateFull = FocusTracking Full
pattern StateFull :: FocusTracking Full a
pattern $bStateFull :: forall a. FocusTracking Full a
$mStateFull :: forall {r} {a}.
FocusTracking Full a -> ((# #) -> r) -> ((# #) -> r) -> r
StateFull = FocusTracking Nothing Full
instance LayoutClass l Window => LayoutClass (FocusTracking l) Window where
description :: FocusTracking l Window -> String
description (FocusTracking Maybe Window
_ l Window
child)
| String
chDesc forall a. Eq a => a -> a -> Bool
== String
"Full" = String
"StateFull"
| Char
' ' forall (t :: * -> *) a. (Foldable t, Eq a) => a -> t a -> Bool
`elem` String
chDesc = String
"FocusTracking (" forall a. [a] -> [a] -> [a]
++ String
chDesc forall a. [a] -> [a] -> [a]
++ String
")"
| Bool
otherwise = String
"FocusTracking " forall a. [a] -> [a] -> [a]
++ String
chDesc
where chDesc :: String
chDesc = forall (layout :: * -> *) a.
LayoutClass layout a =>
layout a -> String
description l Window
child
runLayout :: Workspace String (FocusTracking l Window) Window
-> Rectangle
-> X ([(Window, Rectangle)], Maybe (FocusTracking l Window))
runLayout (W.Workspace String
i (FocusTracking Maybe Window
mOldFoc l Window
childL) Maybe (Stack Window)
mSt) Rectangle
sr = do
Maybe Window
mRealFoc <- forall s (m :: * -> *) a. MonadState s m => (s -> a) -> m a
gets (forall i l a s sd. StackSet i l a s sd -> Maybe a
W.peek forall b c a. (b -> c) -> (a -> b) -> a -> c
. XState -> WindowSet
windowset)
let mGivenFoc :: Maybe Window
mGivenFoc = forall a. Stack a -> a
W.focus forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> Maybe (Stack Window)
mSt
passedMSt :: Maybe (Stack Window)
passedMSt = if Maybe Window
mRealFoc forall a. Eq a => a -> a -> Bool
== Maybe Window
mGivenFoc then Maybe (Stack Window)
mSt
else (Maybe Window
mOldFoc forall (m :: * -> *) a b. Monad m => m a -> (a -> m b) -> m b
>>= \Window
oF -> forall a. (a -> Bool) -> Zipper a -> Zipper a
findZ (forall a. Eq a => a -> a -> Bool
==Window
oF) Maybe (Stack Window)
mSt) forall (f :: * -> *) a. Alternative f => f a -> f a -> f a
<|> Maybe (Stack Window)
mSt
([(Window, Rectangle)]
wrs, Maybe (l Window)
mChildL') <- forall (layout :: * -> *) a.
LayoutClass layout a =>
Workspace String (layout a) a
-> Rectangle -> X ([(a, Rectangle)], Maybe (layout a))
runLayout (forall i l a. i -> l -> Maybe (Stack a) -> Workspace i l a
W.Workspace String
i l Window
childL Maybe (Stack Window)
passedMSt) Rectangle
sr
let newFT :: Maybe (FocusTracking l Window)
newFT = if Maybe Window
mRealFoc forall a. Eq a => a -> a -> Bool
/= Maybe Window
mGivenFoc then forall (l :: * -> *) a. Maybe a -> l a -> FocusTracking l a
FocusTracking Maybe Window
mOldFoc forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> Maybe (l Window)
mChildL'
else forall a. a -> Maybe a
Just forall a b. (a -> b) -> a -> b
$ forall (l :: * -> *) a. Maybe a -> l a -> FocusTracking l a
FocusTracking Maybe Window
mGivenFoc (forall a. a -> Maybe a -> a
fromMaybe l Window
childL Maybe (l Window)
mChildL')
forall (m :: * -> *) a. Monad m => a -> m a
return ([(Window, Rectangle)]
wrs, Maybe (FocusTracking l Window)
newFT)
handleMessage :: FocusTracking l Window
-> SomeMessage -> X (Maybe (FocusTracking l Window))
handleMessage (FocusTracking Maybe Window
mf l Window
childLayout) SomeMessage
m =
(forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
fmap forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
fmap) (forall (l :: * -> *) a. Maybe a -> l a -> FocusTracking l a
FocusTracking Maybe Window
mf) (forall (layout :: * -> *) a.
LayoutClass layout a =>
layout a -> SomeMessage -> X (Maybe (layout a))
handleMessage l Window
childLayout SomeMessage
m)